Linking the Signal CLI with Signal on your mobile.

20170107: It's not "group name" it's "Group ID."  I don't know how to find that yet.

The communications program Signal by Open Whisper Systems is unique in several respects.  Firstly, its barrier to entry is minimal.  You can search for it in the Google Play online store or Apple iOS appstore and it's waiting there for you at no cost.  Second, it's designed for security by default, i.e., you don't have to mess around with it to make it work, and it does does the right thing automatically and enforces strong encryption by default (unlike a lot of personal …

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A random USB port in my hotel room.

When I was in DC a couple of weeks ago, I noticed that the lamps in my hotel room had USB ports in them, presumably for plugging in smart devices to recharge in the event that the traveler did not bring a power strip. Most hotels aren't known for offering a surplus of power outlets.

Seeing as how I was back in Washington, DC, called by some The City of Spies, I couldn't help but wonder how such a thing could be used offensively. Let's say I wanted to gig somebody's smartphone with some canned exploits and a malware package …

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